Dental X-Rays: Didn't I Have Those Last Time?

Chances are, if you've visited any dental office, the term "dental x-rays" has come up. Although having an x-ray anywhere on your body can build anxiety, we're here to assure you that dental x-rays — known as radiographs — are safe, and the benefits far outweigh the risks of a small dose of radiation. Did you know you can receive more radiation from a five-hour flight from New York to Los Angeles than from a single dental x-ray?

Is it safe to have dental x-rays?

Yes. Our principle is ALARA — As Low As Reasonably Achievable. We minimize doses by selecting proper settings, using a lead apron with a thyroid collar, maintaining up-to-date digital technology, and prescribing radiographs appropriately. The amount of radiation in dental radiographs is very small.

What are you looking for on my x-ray?

X-rays are a critical component of your dental assessment. They're primarily used to detect and diagnose cavities, periodontal concerns, cysts, tumours, and conditions of the teeth and bones that cannot be identified by simply looking into the mouth.

How often does an adult or child need x-rays?

Each patient is prescribed radiographs based on their needs — the dentist determines the type, number and frequency. If you're susceptible to cavities, x-rays may be recommended every 12 to 18 months. Children who have had a cavity before age five should be monitored for Early Childhood Caries with yearly x-rays.

What about x-rays during pregnancy?

Routine dental x-rays are postponed until after pregnancy. However, with a lead apron, studies report no detectable radiation exposure to the embryo or fetus. If you had a dental emergency and required an x-ray for diagnosis, you and your child would be safe.

Will insurance cover it?

Most dental plans include radiographic imaging. A predetermination can be sent to your insurance to confirm coverage. Without a plan, x-ray fees are set yearly by the Ontario Fee Guide and vary depending on what's prescribed.

What's a panoramic x-ray used for?

A panoramic radiograph provides an overall view of the mouth. It's typically prescribed to assess wisdom teeth, infections, orthodontic planning, whether all adult teeth are present under the gums, growth and development patterns, lesions and jaw conditions such as TMJD, trauma, and the sinuses.

Can I decline x-rays?

Yes, you have the right to refuse, though you may be asked to sign a refusal form. Without recent x-rays taken within 12 months, an infection, cavity, gum disease, cyst or tumour could go undetected for a long time. Your tooth may have no symptoms, but what lies beneath the gums or between the teeth may tell a different story. We're happy to answer any and all of your x-ray questions at your next appointment.